5509171806418 has 24 divisors (see below), whose sum is σ = 9613099678464. Its totient is φ = 2361035061000.

The previous prime is 5509171806367. The next prime is 5509171806497. The reversal of 5509171806418 is 8146081719055.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6037003 + ... + 6889393.

It is an arithmetic number, because the mean of its divisors is an integer number (400545819936).

Almost surely, 2^{5509171806418} is an apocalyptic number.

5509171806418 is a deficient number, since it is larger than the sum of its proper divisors (4103927872046).

5509171806418 is a wasteful number, since it uses less digits than its factorization.

5509171806418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918358 (or 918351 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 55.

The spelling of 5509171806418 in words is "five trillion, five hundred nine billion, one hundred seventy-one million, eight hundred six thousand, four hundred eighteen".